Boron cannot form which one of the following anions?
(1) BO2-
(2) BF63-
(3) BH4-
(4) B(OH)4-
Due to absence of low lying vacant d orbital in B, sp3d2hybridization is not possible hence BF63-will not formed.
_______________ of a material is defined as the minimum amount of the work necessary to remove a free electron from the surface of the material.
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Atomic number of which of the following elements is greater than that of Zinc
Which of the following statements about the reaction below are INCORRECT?
2Pb + C → 2Pb + CO2
A. Carbon di-oxide is getting, oxidisedB. Lead is getting reducedC. Carbon is oxidisedD. Lead oxide is getting reduced
A solution contains 33 g of common salt in 320 g of water. Calculate the concentration in terms of mass, by mass percentage of the solution.
............ element is represented by the given symbol.
Calculate the relative molecular mass of water H2O?
Potassium Permanganate is used for purifying drinking water, because________
Which is the only non-metal placed at the left side of the Modern Periodic Table?
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